Excessive reproduction control technology of benthic macro-algae in apostichopus japonicas culturing pond

A technology of over-breeding and simulating sea cucumber, applied in fish farming, seaweed cultivation, climate change adaptation, etc., can solve the problems of ineffectiveness, lack of dissolved oxygen, time-consuming

Inactive Publication Date: 2011-01-05
LIAONING OCEAN & FISHERIES SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, often encounter the hazards caused by the excessive reproduction of benthic macroalgae. The macroalgae die in large numbers and deposit at the bottom of the pool to rot and deteriorate, breeding a large number of pathogenic microorganisms such as bacteria and viruses, consuming a large amount of oxygen in the water, causing Severe lack of dissolved oxygen reduces the immunity of sea cucumbers and causes disease outbreaks
So far, the main method adopted for the excessive reproduction, growth and decay of benthic macroalgae in sea cucumber culture ponds is salvage, which is time-consuming, laborious, and fails to achieve the desired effect

Method used

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  • Excessive reproduction control technology of benthic macro-algae in apostichopus japonicas culturing pond

Examples

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Embodiment 2

[0023] Example 2: Dalian Lvshun 30 mu imitation japonicus culture pond, 2006, 2007 consecutive 2 years, end-dwelling macroalgae overgrowth, water quality is clear to the bottom, macroalgae rot every summer, need to keep the bottom quality by means of continuous salvage. Algae decay and deteriorate. From April 15th to April 26th, 2008, by splashing suspended mud (the average median particle size of mud particles is 2.2um), the transparency of the pond water quality was reduced to 100cm (the water depth of the breeding pond was 110-120cm), and the benthic large Algae reproduction, sea cucumber growth is good. In culture ponds without controlled transparency, benthic macroalgae thrive.

Embodiment 3

[0024] Example 3: In a 12-acre sea cucumber culture pond in Lvshun, Dalian, there were three consecutive years from 2005 to 2007 in which end-dwelling macroalgae were excessively multiplied, requiring multiple salvage. In 2008, from April 18th to May 4th in the spring, when the light was strong, the number of benthic macroalgae was significantly reduced and effectively controlled by using shade nets. Benthic macroalgal blooms flourished in adjacent ponds without shade nets.

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Abstract

The invention discloses an excessive reproduction control technology of benthic macro-algae in an apostichopus japonicas culturing pond. The excessive reproduction of the benthic macro-algae in the apostichopus japonicas culturing pond can cause severe damage to the normal growth of the apostichopus japonicas. The excessive reproduction and massive death of the macro-algae can breed large amounts of pathogenic microorganisms such as bacteria, viruses and the like and consume much of the oxygen in the water, so as to cause the famine of the dissolved oxygen in the bottom water body, reduce the immunity of the apostichopus japonicas, and cause the disease outbreak and the like. Aiming at the problem of the traditional control technology and method of the benthic macro-algae, the invention provides three technical methods to control the damage caused by the excessive reproduction of the benthic macro-algae in the apostichopus japonicas culturing pond, wherein the first method comprises the step of compositely culturing the macro-algae of asparagus so as to control the excessive reproduction of the benthic macro-algae in a light shading manner; the second method comprises the step of splashing the mud with good suspension property so as to control the reproduction of the benthic macro-algae in a manner of reducing the transparency of the culturing water; and the third method comprises the step of by utilizing a shading net, adjusting the illumination so as to control the reproduction of the benthic harmful algae. The invention saves the resource cost, solves the key problem in the apostichopus japonicas culturing technology, and has the advantage of long-term market development and economic investment potential.

Description

technical field [0001] This invention is aimed at the problem of the quality of life of sea cucumbers caused by the excessive reproduction of benthic macroalgae in sea cucumber breeding ponds, and a set of comprehensive technologies for controlling the excessive reproduction of benthic macroalgae in sea cucumber culture ponds can be effectively controlled. The excessive reproduction of benthic macroalgae in the culture pond can avoid the deterioration of the pond bottom quality caused by the excessive reproduction and death of the benthic macroalgae, and reduce the damage caused by the deterioration of the bottom quality of the culture pond to the growth of sea cucumber cultured in the pond. Background technique [0002] Due to its good quality, high economic value, and large market demand, the imitation sea cucumber (Apostichopus japonicus) distributed in the Yellow and Bohai Sea regions of China has become an important breeding species in northern regions such as Shandong a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A01G33/00
CPCY02A40/80Y02A40/81
Inventor 周遵春董颖许伟定陈仲姜北关晓燕汪笑宇杨爱馥
Owner LIAONING OCEAN & FISHERIES SCI RES INST
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